Needle numerical control feeding mechanism

Abstract

The utility model relates to the technical field of machine needle production transportation equipment, and discloses a machine needle numerical control feeding mechanism which comprises a machine frame, a transmission structure and limiting structures, the transmission structure and the limiting structures are located on the machine frame, the whole machine frame is U-shaped, the limiting structures are located on the two sides of the transmission structure, and the transmission structure comprises a conveying belt, a driving shaft and a driven shaft. The limiting structure comprises rolling limiting structures located on the driving shaft and the driven shaft and limiting rollers located on the two sides of the conveying belt, the limiting rollers are located in the middle of the conveying belt and are perpendicular to the conveying belt, the limiting rollers are rotationally connected with the side wall of the rack through a support, and each rolling limiting structure comprises a bearing and a ball. A bearing plate is arranged below the conveying belt. The conveying belt is limited, the balls can facilitate conveying of the conveying belt and can limit the conveying belt, the limiting rollers in the middle of the conveying belt can further conduct limiting to prevent deviation, and the bearing plate below the conveying belt can collect scattered machine needles.

Description

Technical Field

[0001] The utility model relates to the technical field of machine needle production and transportation equipment, in particular to a machine needle numerical control feeding mechanism. Background Art

[0002] When feeding the needles before, since the transmission structure on the frame is driven by a motor, some vibration will occur, and the conveyor belt is long, so the conveyor belt will inevitably deviate during transportation, affecting transportation, and the vibration of the frame will cause the needles to fall and scatter on the ground.

[0003] Document CN201610444548 discloses a conveyor belt with a limiting device, comprising a driving roller and a driven roller connected by a conveyor belt, and a bracket for fixing the driving roller and the driven roller. Both ends of the driving roller and the driven roller are provided with an annular groove, and an angular limiting block is installed in the annular groove. The angular limiting block is connected to the bracket via a support rod. The plane where the annular groove is located is perpendicular to the central axis of the driving roller and the driven roller. The lower end of the angular limiting block is an arc, and the curvature radius of the arc is the same as that of the driving roller and the driven roller. Although this structure can limit the conveyor belt, there will be friction between the angular limiting blocks of the limiting structure and the conveyor belt, and long-term transmission will cause wear of the conveyor belt.

[0004] Therefore, a new technical solution is needed to solve the above technical problems. Summary of the Invention

[0005] In order to solve the above problems, the utility model discloses a CNC feeding mechanism for machine needles, which sets a limit for the conveyor belt. The ball bearing can facilitate the transmission of the conveyor belt and limit the conveyor belt. The limiting roller in the middle of the conveyor belt can further limit the position to prevent deviation, and the receiving plate under the conveyor belt can collect scattered machine needles.

[0006] The technical solution of the present utility model is: a CNC feeding mechanism for a machine needle, including a frame and a transmission structure and a limiting structure located on the frame. The frame is U-shaped as a whole, and the limiting structures are located on both sides of the transmission structure. The transmission structure includes a conveyor belt and a driving shaft and a passive shaft. The limiting structure includes a rolling limiting structure located on the driving shaft and the passive shaft and limiting rollers located on both sides of the conveyor belt. The limiting rollers are located in the middle of the conveyor belt and are vertical to the conveyor belt. The limiting rollers are rotatably connected between the bracket and the side wall of the frame. The rolling limiting structure includes bearings and balls, and a receiving plate is provided under the conveyor belt.

[0007] Preferably, an inclined transition slope is provided on the upper part of both side edges of the receiving plate, the cross-section of the transition slope is a right-angled triangle, the inclined surface of the transition slope is toward the conveyor belt, the transition slope is located below the bearing, and the right-angled sides of the transition slope are respectively close to the side wall of the frame and the upper surface of the receiving plate, and the upper surface of the receiving plate is provided with a rough layer.

[0008] By adopting the above technical solution, when the machine needle is being transported, if the machine needle falls from the conveyor belt, the receiving plate under the conveyor belt can just catch the fallen machine needle, and the rough layer on the surface of the receiving plate can prevent the machine needle from rolling and falling.

[0009] Preferably, a buckle that matches the slot on the frame is provided on the lower side of the receiving plate, and the buckle on the receiving plate is in an inverted L shape and is just stuck in the slot of the frame.

[0010] By adopting the above technical solution, the buckle at the lower part of the side of the receiving plate is just inserted into the card slot. When the needle on the receiving plate needs to be taken out, a part of the receiving plate can be pulled out from the card slot to arrange the needle.

[0011] Preferably, the bearings are respectively located on the active shaft and the passive shaft and on the inner side wall of the frame, and balls are embedded in the bearings. The balls always remain in the bearings, with the outside of the balls exposed to the bearings, and the balls and the bearings are rotatably connected.

[0012] By adopting the above technical solution, when the conveyor belt passes through the bearings and balls on the shaft, the balls can limit the conveyor belt while allowing the conveyor belt to pass smoothly, which not only plays a limiting role but also allows the conveyor belt to transition smoothly.

[0013] Preferably, the conveyor belt is wrapped around and tensioned on the driving shaft and the driven shaft, the conveyor belt is parallel to the horizontal direction, and the portion of the conveyor belt located on the driving shaft and the driven shaft is always located between the balls on both sides.

[0014] By adopting the above technical solution, both ends of the conveyor belt are always kept in the position between the balls, preventing displacement due to long-term work.

[0015] Preferably, the bracket of the limiting roller is in an inverted U shape, with the open end of the bracket facing the inner wall of the frame, the limiting roller is located on the bracket, the height of the limiting roller is greater than the cross-sectional diameter of the active shaft and the passive shaft, the outer surface of the limiting roller is provided with a rubber layer, and the distance between the limiting rollers is adapted to the width of the conveyor belt.

[0016] By adopting the above technical solution, since the overall length of the conveyor belt is relatively long, the limiting roller in the middle of the conveyor belt can make the conveyor belt, which may be offset, return to its original position when it contacts the limiting roller.

[0017] Preferably, the driving shaft is driven by an external motor, and the passive gear on the passive shaft is driven by the driving gear and belt on the driving shaft for transmission.

[0018] By adopting the above technical solution, the conveyor belt is driven by an external motor to transport and feed the machine needles.

[0019] The benefits of the present invention are as follows: 1. By arranging limiting structures at both ends and the middle of the conveyor belt, the present invention can enable the balls to guide and prevent the conveyor belt from deviating during transportation. The limiting roller can further correct the conveyor belt in the middle of the conveyor belt to prevent the conveyor belt from deviating.

[0020] 2. The utility model places a receiving plate under the conveyor belt, and the machine needles that fall on the conveyor belt just fall onto the receiving plate, which makes it convenient to collect the machine needles on the receiving plate later and prevent them from being scattered on the ground, thereby increasing the transportation efficiency of the machine needles.

[0021] 3. The utility model feeds the machine needle to the next process. When feeding, it can prevent the machine needle on the conveyor belt from falling to the ground, and can keep the conveyor belt in the middle position at all times to prevent deviation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural diagram of the utility model;

[0023] Figure 2 This is a schematic diagram of the structure of the utility model without a conveyor belt and a receiving plate.

[0024] Figure 3 This is a structural diagram of the receiving plate of the utility model;

[0025] Figure 4 This is a schematic structural diagram of the limiting roller of the utility model.

[0026] Among them: 1. Frame, 2. Slot, 3. Conveyor belt, 4. Bearing, 5. Ball, 6. Bracket, 7. Limit roller, 8. Attachment plate, 801, Rough layer, 9. Transition slope, 10. Buckle, 11. Belt, 12. Motor. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0028] like Figure 1As shown, the CNC feeding mechanism of the machine needle includes a frame 1 and a transmission structure and a limiting structure located on the frame 1. The frame 1 is U-shaped as a whole, and the limiting structures are located on both sides of the transmission structure. The transmission structure includes a conveyor belt 3 and a driving shaft and a passive shaft. The limiting structure includes a rolling limiting structure located on the driving shaft and the passive shaft and limiting rollers 7 located on both sides of the conveyor belt 3. The limiting rollers 7 are located in the middle position of the conveyor belt 3 and are vertical to the conveyor belt 3. The limiting rollers 7 are rotatably connected between the bracket 6 and the side wall of the frame 1. The rolling limiting structure includes bearings 4 and balls 5. A receiving plate 8 is provided under the conveyor belt 3.

[0029] The upper part of both sides of the receiving plate 8 is provided with an inclined transition slope 9, which can guide the machine needle to fall onto the receiving plate 8. The cross-section of the transition slope 9 is a right triangle, and the inclined surface of the transition slope 9 is facing the conveyor belt 3. The transition slope 9 is located below the bearing 4. The right-angled sides of the transition slope 9 are respectively close to the side wall of the frame 1 and the upper surface of the receiving plate 8. The upper surface of the receiving plate 8 is provided with a rough layer 801. When the machine needle is transported, if the machine needle falls from the conveyor belt 3, the receiving plate 8 below the conveyor belt 3 can just catch the fallen machine needle, and the rough layer on the upper surface of the receiving plate 8 can prevent the machine needle from rolling and falling.

[0030] The lower part of the side of the receiving plate is provided with a buckle that is compatible with the slot on the frame. The buckle on the receiving plate is in an inverted L shape, which is just stuck in the slot 2 of the frame 1. The buckle 10 at the lower part of the side of the receiving plate 8 is just stuck in the slot 2. When the needle on the receiving plate 8 needs to be taken out, a part of the receiving plate 8 can be pulled out from the slot 2 to organize the needle.

[0031] The bearings 4 are respectively located on the active shaft and the passive shaft and on the inner side wall of the frame 1. Balls 5 are embedded in the bearings 4. The balls 5 always remain in the bearings 4. The outside of the balls 5 is exposed to the bearings 4. The balls 5 and the bearings 4 are rotatably connected. When the conveyor belt 3 passes through the bearings 4 and the balls 5 on the shaft, the balls 5 limit the conveyor belt 3 while allowing the conveyor belt 3 to be transmitted smoothly. It not only plays a role in limiting the position, but also allows the conveyor belt 3 to have a smooth transition.

[0032] The conveyor belt 3 is wrapped around and tensioned on the driving shaft and the passive shaft. The conveyor belt 3 is parallel to the horizontal direction. The part of the conveyor belt 3 located on the driving shaft and the passive shaft is always located between the balls 5 on both sides. The two ends of the conveyor belt 3 always remain in the position between the balls 5 to prevent displacement due to long-term work.

[0033] The bracket 6 of the limiting roller 7 is in an inverted U shape, with the open end of the bracket 6 facing the inner wall of the frame 1. The limiting roller 7 is located on the bracket 1. The height of the limiting roller 7 is greater than the cross-sectional diameter of the active shaft and the passive shaft. The outer surface of the limiting roller 7 is provided with a rubber layer. The distance between the limiting rollers 7 is adapted to the width of the conveyor belt 3. Since the overall length of the conveyor belt 3 is relatively long, the limiting roller 7 in the middle of the conveyor belt 3 can make the conveyor belt 3 that may be offset return to its original position when it contacts the limiting roller 7.

[0034] The driving shaft is driven by an external motor 12, and the passive gear on the passive shaft is driven by the active gear and belt 11 on the active shaft. The motor 12 is placed on the support frame, and the conveyor belt 3 is driven by the external motor 12 to transport and feed the machine needle.

[0035] Working principle: The machine needle is transported to the next process through the conveyor belt 3. During transportation, the operation of the motor and other devices will cause the conveyor belt 3 to vibrate. Under long-term transportation of the conveyor belt 3, the conveyor belt 3 will be offset. The ball 5 on the bearing 4 and the limiting roller 7 in the middle of the conveyor belt can make the conveyor belt 3 return to the correct position. The machine needle that may fall on the conveyor belt 3 will fall onto the receiving plate 8 below, which is convenient for later collection.

[0036] Those skilled in the art will understand that the embodiments of the present invention described above and shown in the accompanying drawings are intended only as examples and are not intended to limit the present invention. The objectives of the present invention have been fully and effectively achieved. The functional and structural principles of the present invention have been demonstrated and illustrated in the embodiments. Any variations or modifications may be made to the embodiments of the present invention without departing from the principles described.

Claims

1. A CNC needle feeding mechanism, comprising a frame, a transmission structure and a limiting structure located on the frame. The frame is generally U-shaped, the limiting structures are located on both sides of the transmission structure, the transmission structure comprises a conveyor belt, a driving shaft, and a driven shaft. The limiting structure comprises rolling limiting structures located on the driving shaft and the driven shaft, and limiting rollers located on both sides of the conveyor belt. The mechanism is characterized by: The limiting roller is located in the middle of the conveyor belt and is perpendicular to the conveyor belt. The limiting roller is rotatably connected between the bracket and the side wall of the frame. The rolling limiting structure includes bearings and balls, and a receiving plate is provided under the conveyor belt.

2. The needle numerical control feeding mechanism according to claim 1, characterized in that: The upper part of both sides of the receiving plate is provided with an inclined transition slope, the cross-section of the transition slope is a right-angled triangle, the inclined surface of the transition slope is facing the conveyor belt, the transition slope is located below the bearing, the right-angled sides of the transition slope are respectively close to the side wall of the frame and the upper surface of the receiving plate, and the upper surface of the receiving plate is provided with a rough layer.

3. The needle numerical control feeding mechanism according to claim 1, characterized in that: A buckle that matches the slot on the frame is provided on the lower side of the receiving plate. The buckle on the receiving plate is in an inverted L shape and is just stuck in the slot of the frame.

4. The needle numerical control feeding mechanism according to claim 1, characterized in that: The bearings are respectively located on the active shaft and the passive shaft and on the inner side wall of the frame. Balls are embedded in the bearings. The balls always remain in the bearings, with the outside of the balls exposed to the bearings. The balls and the bearings are rotatably connected.

5. The needle numerical control feeding mechanism according to claim 1, characterized in that: The conveyor belt is wound around and tensioned on the driving shaft and the driven shaft, the conveyor belt is parallel to the horizontal direction, and the portion of the conveyor belt located on the driving shaft and the driven shaft is always located between the balls on both sides.

6. The needle numerical control feeding mechanism according to claim 1, characterized in that: The bracket of the limiting roller is in an inverted U shape, the open end of the bracket faces the inner wall of the frame, the limiting roller is located on the bracket, the height of the limiting roller is greater than the cross-sectional diameter of the active shaft and the passive shaft, the outer surface of the limiting roller is provided with a rubber layer, and the distance between the limiting rollers is adapted to the width of the conveyor belt.

7. The needle numerical control feeding mechanism according to claim 1, characterized in that: The driving shaft is driven by an external motor, and the passive gear on the passive shaft is driven by the driving gear and belt on the driving shaft for transmission.

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